The Epeios related software uses ports 53700 to 53799.
smbpasswd -a <username>(
<username>seems to need to be an existing login, despite what can be found in some documentation),
[<name>] path = /home/<user_name>/<folder> available = yes valid users = <username> read only = no browsable = yes public = yes writable = yes
service smbd restart).
In the file explorer, type
<name> is the same name as the one given in the above section.